package com.jic.order.utils;

import com.jic.order.constant.GlobalConsts;
import java.net.InetAddress;
import java.net.UnknownHostException;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.lang.StringUtils;

/**
 * @author guohuayong
 * @date: 2020年01月10日
 */
public class WebUtil {

	/**
	 * 获取客户端IP
	 */
	public static final String getHost(HttpServletRequest request) {
		String ip = request.getHeader("X-Forwarded-For");
		if (StringUtils.isBlank(ip) || "unknown".equalsIgnoreCase(ip)) {
			ip = request.getHeader("Proxy-Client-IP");
		}
		if (StringUtils.isBlank(ip) || "unknown".equalsIgnoreCase(ip)) {
			ip = request.getHeader("WL-Proxy-Client-IP");
		}
		if (StringUtils.isBlank(ip) || "unknown".equalsIgnoreCase(ip)) {
			ip = request.getHeader("X-Real-IP");
		}
		if (StringUtils.isBlank(ip) || "unknown".equalsIgnoreCase(ip)) {
			ip = request.getRemoteAddr();
		}
		if (GlobalConsts.LOCALHOST.equals(ip)) {
			InetAddress inet = null;
			try {
				inet = InetAddress.getLocalHost();
			} catch (UnknownHostException e) {
				e.printStackTrace();
			}
			ip = inet.getHostAddress();
		}
		if (ip != null && ip.length() > 15) {
			if (ip.indexOf(GlobalConsts.SPLIT_COMMA) > 0) {
				ip = ip.substring(0, ip.indexOf(GlobalConsts.SPLIT_COMMA));
			}
		}
		return ip;
	}
}
